<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <!-- //赋值运算   右边换算左边-->
    <script>
      var aaa = 10;
      aaa += 10;
      aaa -= 5;
      aaa *= 345;
      aaa /= 5;
      console.log(aaa); // 1035
    </script>
  </body>
</html>
